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Darmstadt 2016 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 14: Beam Diagnostics II

AKBP 14.4: Talk

Thursday, March 17, 2016, 17:15–17:30, S1/05 23

Status of Near-Field EO Measurements at ANKA — •Patrik Schönfeldt, Michele Caselle, Nicole Hiller, Anke-Susanne Müller, Michael Nasse, Gudrun Niehues, Lorenzo Rota, and Sophie Walther — KIT, Karlsruhe, Germany

ANKA is the first storage ring in the world that has a near-field electro-optical (EO) bunch profile monitor installed inside its vacuum chamber. Using the method of electro-optical spectral decoding, the setup made it possible to study longitudinal beam dynamics (e.g. microbunching) occurring during ANKA's low-alpha-operation with sub-ps resolution (granularity).

Installed in 2013, the initial setup is currently being upgraded. The commercial spectrometer is replaced by a custom development that offers repetition rates in the MHz range. The in-vacuum geometry has been redesigned to reduce the effect of wakefields, aiming for measurements in multi-bunch operation. This talk presents the current status of the upgrade and of near-field EO measurements at ANKA in general.

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